/Engine/Plugins/Experimental/PCG/Source/PCG/Public/Elements/Metadata/PCGMetadataOpElementBase.h
template<typename InType1, typename InType2, typename InType3, typename InType4, typename... Callbacks> bool DoQuaternaryOp ( [FOperationData](API\Plugins\PCG\Elements\Metadata\FPCGMetadataElementBase\FOperationData) & InOperationData, Callbacks &&... InCallbacks ) const